allow latent self-automating plugins

diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 9e253a359fb12f9487f1d10e0148e3ebc238f6a5..ca0a5b45e3f13a0378239a32ad5fddd67035ed64 100644 (file)
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -2472,11 +2472,13 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
                                                                // -> add automation event..
                                                                AutomationCtrlPtr c = get_automation_control (p);
                                                                if (c && c->ac->automation_state() == Touch) {
+                                                                       framepos_t when = std::max ((framepos_t) 0, _session.transport_frame() + frames - _current_latency);
+                                                                       assert (_session.transport_frame() + frames - _current_latency >= 0);
                                                                        if (c->guard) {
                                                                                c->guard = false;
-                                                                               c->ac->list()->add (_session.transport_frame() + frames, v, true, true);
+                                                                               c->ac->list()->add (when, v, true, true);
                                                                        } else {
-                                                                               c->ac->set_double (v, _session.transport_frame() + frames, true);
+                                                                               c->ac->set_double (v, when, true);
                                                                        }
                                                                }
                                                        }
@@ -2501,7 +2503,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
                                                                const uint32_t p = ((const LV2_Atom_Int*)parameter)->body;
                                                                AutomationCtrlPtr c = get_automation_control (p);
                                                                if (c) {
-                                                                       c->ac->start_touch (_session.transport_frame());
+                                                                       c->ac->start_touch (std::max ((framepos_t)0, _session.transport_frame() - _current_latency));
                                                                        c->guard = true;
                                                                }
                                                        }
@@ -2515,7 +2517,7 @@ LV2Plugin::connect_and_run(BufferSet& bufs,
                                                                const uint32_t p = ((const LV2_Atom_Int*)parameter)->body;
                                                                AutomationCtrlPtr c = get_automation_control (p);
                                                                if (c) {
-                                                                       c->ac->stop_touch (true, _session.transport_frame());
+                                                                       c->ac->stop_touch (true, std::max ((framepos_t)0, _session.transport_frame() - _current_latency));
                                                                }
                                                        }
                                                }